spotting vs detection

spotting and detection both are nouns.

Word	Noun	Adjective	Verb	Adverb
spotting	Yes	No	No	No
detection	Yes	No	No	No

As nouns, spotting and detection are synonyms defined as:

spotting and detection: the act of detecting something; catching sight of something

Other synonyms of spotting include catching, espial, spying.

spotting (noun)	detection (noun)
the act of detecting something; catching sight of something	the act of detecting something; catching sight of something
the act of spotting or staining something	a police investigation to determine the perpetrator
	the perception that something has occurred or some state exists
	the detection that a signal is being received